After striking up a casual acquaintance with his seat-mate on a flight home, Jerry is stuck caring for his dog after he falls ill and the aircraft makes an emergency landing in Chicago so he can be hospitalized. After three days of keeping the dog in his apartment, Jerry is at his wits end. He doesn't want to go out in case the dogs makes a mess and he has no idea when the owner may show up to collect him. Kramer meanwhile decides that he wants to break up with his latest girlfriend.